#VU106858 Resource management error in Linux kernel - CVE-2025-21916

Vulnerability identifier: #VU106858

Vulnerability risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2025-21916

CWE-ID: CWE-399

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to resource management error within the cxacru_bind() function in drivers/usb/atm/cxacru.c. A local user can perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Linux kernel: 5.4 - 5.4.290

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External links
https://git.kernel.org/stable/c/197e78076c5ecd895f109158c4ea2954b9919af6
https://git.kernel.org/stable/c/319529e0356bd904528c64647725a2272d297c83
https://git.kernel.org/stable/c/903b80c21458bb1e34c3a78c5fdc553821e357f8
https://git.kernel.org/stable/c/a0475a885d69849b1ade38add6d64338dfa83a8f
https://git.kernel.org/stable/c/bf4409f84023b52b5e9b36c0a071a121eee42138
https://git.kernel.org/stable/c/c90aad369899a607cfbc002bebeafd51e31900cd
https://git.kernel.org/stable/c/cfc295f7cccf66cbd5123416bcf1bee2e1bd37de
https://git.kernel.org/stable/c/dcd592ab9dd8a2bfc36e75583b9006db2a77ec24
https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.291

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?